fix(cli): unify slash command autocomplete registry

hermes_cli/commands.py

@@ -1,9 +1,15 @@
 """Slash command definitions and autocomplete for the Hermes CLI.
 
-Contains the COMMANDS dict and the SlashCommandCompleter class.
-These are pure data/UI with no HermesCLI state dependency.
+Contains the shared built-in ``COMMANDS`` dict and ``SlashCommandCompleter``.
+The completer can optionally include dynamic skill slash commands supplied by the
+interactive CLI.
 """
 
+from __future__ import annotations
+
+from collections.abc import Callable, Mapping
+from typing import Any
+
 from prompt_toolkit.completion import Completer, Completion
 
 
@@ -29,24 +35,65 @@ COMMANDS = {
     "/compress": "Manually compress conversation context (flush memories + summarize)",
     "/usage": "Show token usage for the current session",
     "/insights": "Show usage insights and analytics (last 30 days)",
+    "/paste": "Check clipboard for an image and attach it",
+    "/reload-mcp": "Reload MCP servers from config.yaml",
     "/quit": "Exit the CLI (also: /exit, /q)",
 }
 
 
 class SlashCommandCompleter(Completer):
-    """Autocomplete for /commands in the input area."""
+    """Autocomplete for built-in slash commands and optional skill commands."""
+
+    def __init__(
+        self,
+        skill_commands_provider: Callable[[], Mapping[str, dict[str, Any]]] | None = None,
+    ) -> None:
+        self._skill_commands_provider = skill_commands_provider
+
+    def _iter_skill_commands(self) -> Mapping[str, dict[str, Any]]:
+        if self._skill_commands_provider is None:
+            return {}
+        try:
+            return self._skill_commands_provider() or {}
+        except Exception:
+            return {}
+
+    @staticmethod
+    def _completion_text(cmd_name: str, word: str) -> str:
+        """Return replacement text for a completion.
+
+        When the user has already typed the full command exactly (``/help``),
+        returning ``help`` would be a no-op and prompt_toolkit suppresses the
+        menu. Appending a trailing space keeps the dropdown visible and makes
+        backspacing retrigger it naturally.
+        """
+        return f"{cmd_name} " if cmd_name == word else cmd_name
 
     def get_completions(self, document, complete_event):
         text = document.text_before_cursor
         if not text.startswith("/"):
             return
+
         word = text[1:]
+
         for cmd, desc in COMMANDS.items():
             cmd_name = cmd[1:]
             if cmd_name.startswith(word):
                 yield Completion(
-                    cmd_name,
+                    self._completion_text(cmd_name, word),
                     start_position=-len(word),
                     display=cmd,
                     display_meta=desc,
                 )
+
+        for cmd, info in self._iter_skill_commands().items():
+            cmd_name = cmd[1:]
+            if cmd_name.startswith(word):
+                description = str(info.get("description", "Skill command"))
+                short_desc = description[:50] + ("..." if len(description) > 50 else "")
+                yield Completion(
+                    self._completion_text(cmd_name, word),
+                    start_position=-len(word),
+                    display=cmd,
+                    display_meta=f"⚡ {short_desc}",
+                )